Hood for pneumatic stackers.



L. LINK.

Patented May 12, 1914.

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L. LINK.

HOOD FOR PNEUMATIC STAGKERS. APPLICATION FILED IEB.20; 1913.

Patented May '12, 1914.

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UNITED STATES PATENT canton.

LEWIS LINK, 0F COTTSNWOOD FALLS, KAN

SAS, ASSIGNOR OF ONE-HALF TO I-IALBER'I C. WALLACE, OF WIGI-II'IA, KANSAS, AND ONE-HALE TO JESSE I. WALLACE, OF

KANSAS CITY, MISSOURI.

HOOD FOR PNEUMATIC STACKERS.

Specification of Letters Fatent.

Patented May 12, 1914.

To all whom it may concern:

Be it known that I, LEWIS LINK, citizen of the United States, residing at Cottonwood Falls, in the county of Chase and State of Kansas, have invented certainnew and useful Improvements in Hoods for Pneumatic Stackers, of which the following is a specification.

This invention relates to hoods for pneumatic stackers which are employed on threshing machines, grain separators, fodder shredders and similar machines, and one object of the invention is to provide a hood by which the straw will be separated from the dirt and refuse and only clean straw deposited on the stack.

A further objectof the invention is to provide a hood of such a construction that the chafi, which has some value, will be separated from the straw and the refuse and saved, and a further object of the invention is to provide a construction by which the dust laden air will be directed away from the operator.

The invention is illustrated in the accompanying drawings and will be hereinafter first fully described, the novel features being subsequently pointed out in the claims following the description.

In the drawings: Figure 1 is an eleva tion of my improved hood showing the same mounted upon the end of a chute. Fig. 2 is a longitudinal vertical section of the same Fig. 3 is a transverse section taken on the line 3-3 of Fig. 2. Fig. 4 is a plan view.

The chute 1 is of the usual or any preferred form and is illustrated herein .merely to facilitate the understanding of the improvement.

In applying my improved hood to the end of a chute, I employ an attaching band 2 which is intended to encircle the chute near the end thereof and be securely bolted or riveted thereto. This band will be made in various sizes so that the device may be readily applied to chutes of difierent diameters and to the band atdiametrically opposite points thereof I pivot the arms or brackets 3 which extend from a collar 4 adapted to fit around the mouth of the chute and to which the side plates 5 of the hood are rigidly secured. The top and bottom of the chute between the said side plates are unobstructed except at the extreme outer ends of the side plates where a transverse deflecting plate 6 is secured to and extends between the lower edges of the side plates. Extending from the inner edge of the said deflecting plate 6 upwardly and rearwardly to the collar t is a plate 7 which is provided with perforations 8 whereby it constitutes a coarse screen extending between the side plates and forming a top and outer end for the hood. Between the said plate 7 and the end of the chute I provide a transverse series of parallel fingers or rods 9 which have their upper ends securely fastened to a cross bar 9 secured to and extending between the sides of the collar 4: below and parallel with the top of the collar, the said fingers or rods being curved outwardly and downwardly to an imaginary line extending between the extreme lower edges of the side plates 5. These fingers or rods have their lower ends free and they diverge downwardly and outwardly from the perforated plate 7, as clearly shown in Fig. 2 and as will be readily understood. A lever arm 10 is formed on the upper side of the hood and a controlling cord or other connecting device 11 is attached to the upper end of the said lever arm, so that the hood may be swung about its pivotal connection with the attaching band 2 so that the delivery from the hood may be effected as desired.

It is thought the uses and advantages of my improved hood will be readily understood and appreciated. The air blast flows through the chute in the usual manner and the entire volume of the same, except that small portion which will pass between the cross bar 9 and the upper edge of the perforated plate 7, is directed against the fingers or rods 9. The air will pass between the said fingers with the chafi, dirt and refuse and the straw will be arrested by the fingers and directed by the same onto the stack, which will, therefore, receive only clean straw. The perforated plate 7 will constitute a coarse screen ofsuch texture as to permit the dust and the greater portion of the air blast to escape but will check the flow of the chaff and part of the air blast will be deflected against the outer side of the fingers so that it will dislodge therefrom any straw which may be caught thereon. The straw which would. otherwise lodge upon the fingers, is consequentlyfreed therefrom, so that it will drop by its own weight onto the stack and consequently discharge of the straw will be effected continuously and without any tendency to choke the hood or the chute. The chaff which will be separated from the air blast by the perforated plate will be deposited beyond the stack and the dust laden air flowing through the screen or perforated plate will be turned somewhat upwardly and away from the chute and the hood by the deflector 6, so that it will not subject the operator to annoyance and will be driven away from the stack so that the quality of the straw in the stack will not be impaired.

lily improved hood is exceedingly simple and inexpensive in its construction and may be readily applied to any pneumatic stacker now in use.

Having thus described the invention what is claimed as new is:

1. A hood for pneumatic stackers comprising side plates having free upper and lower edges, a screen secured between said side plates, and an upwardly and outwardly directed rigid deflector between said side plates at the lower end of the screen.

2. A hood for pneumatic stackers comprising side plates having free upper and lower edges, a transverse series of downwardly and outwardly extending fingers between said plates and a downwardly and outwardly extending screen between the said plates beyond said fingers, the side plates extending beyond the screen.

3. A hood for pneumatic stackers pro vided with a plurality of straw arresting fingers, a screen beyond and spaced from the said fingers, and a dust deflector be yond the screen.

4. A hood for pneumatic stackers having a series of straw arresting fingers, a perforated plate diverging downwardly and outwardly from the said fingers beyond the same, and an imperforate deflector at the lower end of the perforated plate extending outwardly therefrom.

5. A hood for pneumatic stackers comprising side plates, a collar secured to the inner ends of the said plates, a series of straw arresting fingers secured to said collar and extending downwardly and outwardly therefrom between the said side plates, a perforated plate secured to the said collar and extending downwardly and outwardly therefrom and between the side plates in divergent relation to the said fingers, and an imperforate deflector plate extending between the side plates at the lower outer edge of the perforated plate.

6. A hood for pneumatic stackers comprising side plates having free upper and lower edges, a series of straw-arresting fingers arranged between said side plates and extending downwardly and outwardly from the upper inner corners thereof, a screen arranged between the side plates and cliverging downwardly and outwardly from said fingers, and a deflector extending from the lower edge of said screen between the lower edges of the side plates to the outer corners of said plates.

In testimony whereof I aflix my signature in presence of two witnesses.

LEWIS LINK. [1 s] Witnesses:

O. D. TULL, H. F. HOEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

